Apparatus for handling mold-flasks.



No. 862,074. PATENTED JULY 30,1907. A. & D. HELLER.

APPARATUS FOR HANDLING MOLD FLASKS.

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THE NORRIS PETERS :0. WASHINGTON, n, c.

PATENTBD JULY 30; 1907.

A. & D. HELLER.

APPARATUS FOR HANDLING MOLD FLASKS.

APPLICATION FILED no.1,1oosl 4 SHEETS-SHEET 3.

No.862,074. PATENTED JULY 30, 1907.

A. 62 D. HELLER. APPARATUS FOR HANDLING MOLD FLASKS.

APPLIOA'IION FILED DEO.1,1906.

4 SHEETS-SHEET 4.

I flelziorm L" I M %i7zemrei w qw THE NORRIS PETERS co, WASHINGTON,

UNITED STATES PATENT orrroia.

ADAM HELLER AND DAVID HELLER, OF-BALTIMORE, MARYLAND; SAID ADAM HELLER ASSIGNOR TO SAID DAVID HELLER.

APPARATUS FOR HANDLING MOLD-FLASKS.

Specification of Letters Patent.

Patented July 30, 1907.

Original application filed September 22, 1906 Serial No. 336,810. Divided and this application filed December 1, 1906.

Serial to. 345,949.

To all whom it may concern:

Be it known that we, ADAM HELLER and DAVID HELLER, citizens of the United States, residing at Balti more city, State of Maryland, have invented certain new and useful Improvements in Apparatus for Handling Mold-Flasks, of which the following is a specifl cation.

This invention relates to mold-handling apparatus and especially to the class of flask lifters operated in connection with molding machines.

The object of the invention is to provide an apparatus adapted to be swung from a molding machine for placing empty flasks on a truck or suitable means by which the flasks are placed in position to be filled and rammed, and for removing rammed flasks from the truck, and for swinging tilting and reversing the flasks without displacement from said apparatus.

A further object of the invention is to provide in a flask handling apparatus, a novel and peculiar flask holder and special means .for expanding the holder in grasping and releasing a flask.

A still further object of the invention is to provide in a flask handling apparatus, an expansible flask holder, a device for expanding the holder, and means for connecting and disconnecting the expanding device with the holder.

In our application filed September 22nd 1906, Serial No. 335,810, of which this application is a division, we have shown and described part of the apparatus em bodied in this application and one form of the device embodied herein for expanding the flask holder.

In the accompanying drawings forming part of this application: Figure 1 is a side elevation showing the application of the apparatus. Fig. 2 is a detail top view of the holder showing a flask held therein. Fig. 3 is a similar view showing the holder expanded. Fig. 4 is a front elevation showing the holder free to be turned or reversed. Fig. 5 is a section on the line xx Fig. 4, showing in dotted lines various positions of the holder and its parts. Fig. 6 is a perspective view of one of the expanding arms. Fig. 7 is a top view of a modification. Fig. 8 is an end view of the device shown in Fig. 7.

The same reference numerals denote the same parts throughout the several views of the drawings.

While this apparatus is shown applied to a portable molding machine, it is adapted to be used in connection with any character of molding machines, and for purposes of handling flasks or similar articles independent of any particular machine.

Depending from each side of the body 1, of the ma chine is a hanger 2, pivoted at 3. To the free end of each hanger 2, is pivoted at 4, a-balance-beam 5, provided at one end with a weight 6, adapted to be adjusted to counter balance the weight of a mold flask 7. The

other end of the beams 5 is operated over a flask truck 8, movable to and from the machine on a track 9. Said other end of the beams 5, each have pivoted to them at 10, a swinging arm 11, to the free end of each of which is swiveled or pivoted at 12, a bracket 13, having apertures 14, for the flask handles. The brackets constitute the flask holder, and the said beams and arms constitute the carrier. The holder is capable of being revolved for the purpose of turning or reversing the flask in placing and removing it from the truck. The carrier is adapted to be swung back and forth as well as vertically with or without the flask, so that the swinging position of the holder may be varied as desiredwithout removing the holder.

The means for locking and unlocking or for fixing and releasing the holder with respect to the carrier, consists of a pair of levers 15, each one of which is pivoted at 16, to a projection 17, of each arm 11. The free ends of the levers 15 are pivotally connected by a hand-bar 18, and pivot links 19, adapted to be operated for expanding and contracting the levers laterally with respect to each other, and for effecting the same movement of the holder. The bottom edge of the levers 15 has notches or slots 20 which fit over the top edge of the holderbrackets, and the levers are provided with a notch 21, the function of which will hereinafter be described.

The device for expanding the holder to dislodge or drop a flask therefrom, consists of a pair of levers 22, one of which is pivoted to each lever 15, at 23. Each lever has a notch 24 to engage the top of the holder-brackets, and a pin 25 projects from the side of the levers 22, to engage the notch 21, of the levers 15. I The levers 22 are connected by a hand-bar 26, pivoted or hinged to the levers by links 27. The inner end of each lever 22, has a dog 28, at right angles thereto, provided with a bottom edge inclined upwardly into the revoluble path of the holder. But when the flask is held by the holder and the latter locked or fixed by the levers 15, with the pins 25 in the notches 21, the dogs stand over the ends of the flask. To dislodge or have the holder drop the flask without unlocking the holder, the hand-bar 26 is raised and as it passes the pivot centers of its connecting links it expands the levers 22 to some extent, and by further raising the hand-bar 26, the dogs are forced downwardly between the ends of the flask (in engagement therewith) and the holder-brackets, to slide the latter out of engagement with the flask handles. When the levers 15 and 22 are coupled together the raising of the hand-bar 18, will swing the lever 15 on the pivot 16 so that both sets of levers will be carried together upwardly suflicient to permit reversing the flask or the revolution of the holder.

Referring to the modification shown in Figs. 7 and 8, the levers 29, for fixing and releasing the holder 30,

have a loose handle 31, to permit the said levers to follow the expansion and contraction movements of the holder. The said movements of the holder is accompanied by a pair of toggle levers 32, having one end secured to the levers 29, and the other end pivoted to a hand lever 33. In other respects this device is the same as the preferred form, except as to the dog levers hereinbefore referred to, which are omitted.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In an apparatus for handling mold flasks, the combination, with a flask carrier, and a flask holder hung from the carrier to swing vertically with the latter and adapted to swing horizontally from the carrier, and means hung from the carrier to lock the holder to the carrier and to release the holder from the carrier.

2. In an apparatus for handling mold flasks, the combination, with a flask carrier comprising a pair of balanced beams and swinging arms pivoted to and depending from the beams, of an expansible flask holder comprising a pair of brackets pivoted to and revoluble on the free end of said arms, and means for expanding the holder.

In an apparatus for handling mold flasks, the combination, with a flask carrier comprising vertically swinging beams, and horizontally swinging arms pivoted to the beams, of the flask holder brackets revolubly connected to the free ends of the arms, and means for locking the brackets to the said arms.

4. In an apparatus for handling mold flasks, the combination, with the flask carrier, the flask holder, and the levers for coupling and uncoupling the flask and the holder, of means carried by the levers for expanding and contracting the holder.

5. In an apparatus for handling mold flasks, the combination, with a revoluble flask holder, means for hanging the holder, and the pivoted levers for locking the holder against revolution, of a hand-bar connecting the levers for raising and lowering them.

6. In an apparatus for handling mold flasks, the combination, with a revoluble flask holder, means for hanging the holder, and the levers for locking the holder, of the dog levers pivoted to the locking levers for expanding the holder in locked position.

7. In an apparatus for handling mold flasks, the combination, with a revoluble flask holder, swinging arms from which the holder is hung, and the levers pivotally connected'to said arms for locking and releasing the holder, of the dog levers pivoted to the locking levers for expanding the latter and the holder.

8. In an apparatus for handling mold flasks, the combination, with the flask carrier hung to swing vertically and horizontally, of a flask holder comprising a pair of brackets pivoted to revolve upon the carrier and having apertures for the flask handles, and means working in the path of the brackets for expanding them.

S). In an apparatus for handling mold flasks, the combination, with the flask carrier for swinging the flask, and the flask holder for revolving and reversing the flask, of the levers adapted to engage the holder for locking it, and the levers each having a dog extending into the path of the holder and carried by the locking levers for expanding the holder.

In Witness whereof we hereunto set our hand in the presence of two witnesses.

ADAM HELLER. DAVID HELLER.

Witnesses:

Gno. L. hLlATTINGLY, M. L. BAUSEMER. 

